Mike Gravel tells the story on how he released the Pentagon
Papers and his involvement in stopping the draft. He is a
great story teller. His speech is also quite funny.

The entire episode from Democracy Now is available here.
The Real Player stream is here.

I loved the last bit about how they managed to publish the
papers. When they were running out of sources and it seemed
like MIT Press would not publish it, Beacon Press decided to
publish them: they had the money and were willing to go ahead
with it.